Tank car



Mai 7, 1935- c. c. c. BURKHARDT 2,000,819

May 7, 1935. c. c. c. BURKHARDT TANK CAR Filed July 26, 1950 2 Sheets-Sheet 2 running board brackets, and the car may be made f either of cast steel or if found desirable and expedient, it may be made of an aluminum alloy to reduce weight.

While I have shown the car in Fig. 5 as of cylindrical shape incross section, it may be made in other shapes, such as that shown in Fig. 6, in which the lower section 5a has vertical sides and is iiat on the underside.

of the lower section.

YI claim:

l. The combination in a tank car having upper and lower portions, the lower portion being made as an integral casting and consisting of an outer shell, an inner bottom plate; vertical websgeX-' tending the full length of the car, and connecting the bottom plate to the shell; said parts forming' part of the under frame for the car; end, members cast integrally withA the lower portion; a central cast metal uppersection, connected'vto the lower portion; and sheet 'metal upper-side'seetionsfse curedgto vthe sides and ends-ofthe lower portion and to the central uppersection,

2; The` combinationin a tank car, V'offritY lower cast Vmetal section forming the under frame 'of the car; a central cast metal upper section-securedfto the lowersection and havinga dor'ne'; and-'sheet metal `upper, fsectio' ns secured to "andzextending from the cast metal upper section to the Aeridsjo'f the car andsecuredto s aid lowersectionandsaid ends. 3. vThe combination in a'tankfcar, of a'fcast metal lower section .consisting of 'a semilcylin driev cal outer shell anda. bottom''plfatatliA aid outer Shell' extendineto' a point' aboli? rir`ii .1ivaiL df .the heightof the caiffandhaving flanges; end `members cast integrally with tlf'ie' lower section, three upper semi-.cylindrical sections,v comprising two end sections .andia `centralsection,the central semi-,cylindrical section having a dome and Abeing made as an integraljsection,saidcentral section having longitudinal iianges and end "iianget,v vthe saidend sections beingsecured to theend iianges of the central section andextending to the end o f. the car, the end sections also having flanges means for securingthe'flangesomfgthe three upper sections to the nanges of theQlQwe'SectiQn of the car; andimeans for vsecuring the vupper "end sec-f tions tothe end membersof the lower section.

4. The combination ina tank car, of la. lower sectionv made in asingle' casting., including an outer shell and' inner bottom plate; vertical connecting webs connecting the shell and the plate', and end members', the bottom plateA being curved upward at each'end to form reenforcementsf for the end members. f v

v 5; The combination in a tank car, of upper and lower sections, the lower section consistingof an outer shell, a-bottonr plate and vertical webs extending the full length of the car; end members extendingabove the sides of the shell, ythe bottom plate extending upward at each end, forming reenforcements for the end members, and the said lower section being made ras an integral casting; and upper sections secured tothe lower section, to the ends and to oner'a'nother. Y

6. The combination ina tank 'car having upper and lowers'ect'ions, the lower section being invade as an integral c'asting'and having an youter shell, a bottom platejtwofvertical webs extending the fulll length of the car and extending from' the bottom plate toi-theshell; end members; transverse partitions above the bottom and bumpers at each In this instance thev upper sections Illa are welded Vto the vertical sides end of the lower section; acentral upper section made as an integral casting and having an integral dome; and separate upper sections extending from the Vcast metal upper section to the end members of the lower section, and said upper sections being securedtogether and to the lower section and end members.

7. A lower integral section for a tank car made of cast metal, consisting 'oi an outer shell; an inner bottom plate; endA members; vertical webs extending longitudinally of the car and connecting the shell, the inner bottom plate and the end fzmembers, said end members extending above the inner bottom plate, the inner bottom plate and the webs having manholes opening therein, which allow the content of the car to flow into spaces under the inner bottom plate; and upper sections secured together .and to the lower section and the end members.

8. In a railway vehicle underframe, an arcuate plate'forfn'ing a tank bottom member for a cylindrical tank, and tank end members cast integrally vwiththe saidiplate andextending 'above the side portions 'of thearcuate plateyand a longitudinal web. vertic'allyiarranged, said'web being integral with'the-tank bottom and tank end members,'the webextendingupwar'ds at eachV end where it joins Ythe end members toreinforce said tank ends. 9.Y In a' railway vehicle underframe, spaced bolsters, a longitudinal member of'arcuate cross sec tion between'said -bolsters and below the 'tops thereof Sand"A forming theV bottom of a cylindrical tank, andend membersextending upwardly above the tops of the side portions 'ofthe longitudinal arcuate member; and two vertical webs located one on each side of the 'center of'the vehicle and extending longitudinally ythe entire length of the vehicle and integra-l with-I the end members,. the

proximately'the full height'of said .end members while a portion of thev web between said ends has a'relativelyshallow depth compared to the depth ofthe webY adjacent lsaid end members.

j 10. In a railway vehicle underfrarr'ie',` spaced bolsters; V"an arcuate Aportion extending between said bolsters'. and :forming the main `longitudinal member of the underframe and .forming' a tank bottom'; member; tank vend members extending above thefupper edges of the sidesof the arcuate longitudinal Ymember vof the underframe; and vertical webs extending longitudinally of .the underframe and connected integrally with the tank end members and said arcuate longitudinal mem# ber, lsaid longitudinal webs ateach end extending to a point'near the upper ends of the end members and acting'to reinforce s'aidend members. l

"tively shallow depth compared to the depth of the web' adjacent said end member, the Whole being formed as an integral casting.

12. V'A tankcar, the lower portion of which is a single casting forming the outer shell'and which includesv the bottom of the car and:v portions `of eachside; an'innerI bottom plate-'above the bottom of the shell which extends to and reinforces the said sides ofi the shell; and vertical extending above the upper edges lofV the side portions of the shell, three upper sections comprising two end sections v andv a central section all sef cured together and to the shell, each upper end section being also secured to its adjacentrend member of the shell.

14. The r@elimination in a tank car orw a 1ower portion made in a vsingle casting and consisting of a semi-cylindrical shell forming the sides and bottom of the car, said sides extending about midway of the height of the car and end mem- Y 1 bers and transverse intermediate partitions integral with the shell, said end members and the partitions extending the full height of the car and upper sections secured together and to the sides of the shell, 'the'v end uppersections being' secured to the end members of theV shell.V p

15. The combination in a tank car of a lower cast-metal section consisting of a'semi-cylindrical shell forming the bottom of the car 'and portions of the sidesthereofand integral end members extending above therupper. edges of theside v 'l 'y portions of the shell; a. separate central vcast metal upper section locatedrat the centeno! the car and secured to the sides of the lower section,

said central uppersection having an :integral dome vand vseparate upperendsections connecting the central 'upper section with the end meml,

bers of the shell, and connected'to the lower section.v '5

portion of which is in a single casting which in# vcludes anouter shell forming the bottom and part e of each side of the car and ends integral with the l shell, said endsextending above the upper edges of the sides; and an Vupper section completely enclosing the upper portionand secured to the sides and ends ofthe 'shells Y i y t 17. The combination in a tank car, of a. longitudinal plate arcuate in cross section and forme ing the bottom membergfor a cylindrical'tank;

tank end members cast integrally with the said.

plate and extending above the'longitudinaledges Y of the arcuate plate; and an upper section se-v cured to the end members and to the longitudinal edges of the arcuate bottom member.

CONRADC. c. BURKHARDT.

e 10r y 16. The combination in a tank car, the -lower 

